Method for controlling a hydraulic system of a mobile working machine

a mobile working machine and hydraulic system technology, applied in the direction of fluid couplings, positive displacement liquid engines, couplings, etc., can solve the problems of complex load distribution and change, control system cannot allow for one load-dependent reduction in the speed of the internal combustion engine, and cannot be controlled satisfactorily by the method described
US20060182636A1Active Publication Date: 2006-08-17CNH BAUMASCHEN
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
CNH BAUMASCHEN
Publication Date
2006-08-17

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Abstract

A method is described for controlling a hydraulic system, particularly of mobile working machine, with at least one internal combustion engine driving at least one hydraulic pump with adjustable volumetric displacement and possibly additional fixed-displacement pumps
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Description

FIELD OF THE INVENTION

[0001] The present invention concerns a method for controlling a hydraulic system, particularly of a mobile working machine, with at least one internal combustion engine driving at least one hydraulic pump with adjustable volumetric displacement and possibly additional fixed-displacement pumps. BACKGROUND OF THE INVENTION

[0002] A method for controlling the load limit of a hydrostatic drive and a hydrostatic drive for a machine are described in EP 0 497 293 A1. It detects the position of the accelerator and the actual speed of the internal combustion engine present in the machine by means of metrological instruments and feeds these measured values to an electronic control system. A standard deviation is determined from the difference between the actual and target power levels defined by the measured values and a control valve actuated so that the hydraulic pump accepts hydraulic power lower than or equal to the available power of the internal combustion engine...

Claims

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